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Proceedings Paper

New laser-matter interaction concept to enhance hard tissue cutting efficiency
Author(s): Ioana-Mihaela Rizoiu; Larry G. DeShazer
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Paper Abstract

Human enamel and dentin were cut using a 2.8 micrometers erbium laser beam in conjunction with water spray. Ablation rates of the order of 0.14 mm3/s were achieved for both tissues at 4 W average power. An ablation threshold of 0.28 W was determined for dentin when using the water spray. When above threshold, the volume of tissue ablated per joule was discovered to be nearly constant, not related to the average laser power. Comparative microscopy between tissue irradiated with and without water spray demonstrated a lack of thermal effects when the water spray was utilized.

Paper Details

Date Published: 17 August 1994
PDF: 9 pages
Proc. SPIE 2134, Laser-Tissue Interaction V; and Ultraviolet Radiation Hazards, (17 August 1994); doi: 10.1117/12.182949
Show Author Affiliations
Ioana-Mihaela Rizoiu, Laser Medical Technology Inc. (United States)
Larry G. DeShazer, Quantum Group (United States)

Published in SPIE Proceedings Vol. 2134:
Laser-Tissue Interaction V; and Ultraviolet Radiation Hazards
Steven L. Jacques; David H. Sliney; Michael Belkin M.D., Editor(s)

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